Fixing the `build without rrdtool' bug reported by Werner Heuser

diff --git a/src/collectd.h b/src/collectd.h
index 34b0261..89153f9 100644 (file)
--- a/src/collectd.h
+++ b/src/collectd.h
@@ -200,7 +200,10 @@
 #define MODE_LOCAL  0x04
 
 extern time_t curtime;
+
+#ifdef HAVE_LIBRRD
 extern int operating_mode;
+#endif
 
 /* int main (int argc, char **argv); */